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Table 2 Measurements and pt values of selected morphological structures of Milnesium beatae sp. nov. mounted in Hoyer's medium

From: The genus Milnesium Doyère, 1840 (Tardigrada) in South America with descriptions of two new species from Argentina and discussion of the feeding behaviour in the family Milnesiidae

Character

N

Range

Mean

SD

Holotype

μm

pt

μm

pt

μm

pt

μm

pt

Body length

7

662

-

1,011

1,259

-

1,524

864

1,401

144

97

979

1,494

Peribuccal papillae length

7

9.8

-

13.2

18.0

-

23.6

12.0

19.7

1.1

1.9

13.2

20.2

Lateral papillae length

6

10.0

-

14.8

19.0

-

21.1

12.8

20.2

1.6

0.9

13.2

20.2

Buccal tube

             

Length

7

51.6

-

70.2

 

-

 

61.4

-

6.8

-

65.5

-

Stylet support insertion point

7

33.8

-

45.0

63.8

-

66.7

40.0

65.1

4.3

1.1

43.3

66.1

Anterior width

7

37.0

-

53.5

70.3

-

78.9

45.7

74.3

6.6

3.7

51.7

78.9

Standard width

7

32.0

-

42.5

58.1

-

65.6

38.0

61.9

4.2

2.6

39.2

59.8

Posterior width

7

25.7

-

39.0

49.4

-

56.5

33.1

53.6

5.2

2.8

37.0

56.5

Standard width/length ratio

7

58%

-

66%

 

-

 

62%

-

3%

-

60%

-

Posterior/anterior width ratio

7

69%

-

76%

 

-

 

72%

-

3%

-

72%

-

Claw 1 lengths

             

External primary branch

7

17.9

-

26.4

33.6

-

41.4

22.0

35.8

3.1

2.7

22.0

33.6

External base + secondary branch

6

13.6

-

22.1

26.4

-

34.6

19.0

30.9

3.8

3.0

20.8

31.8

External spur

4

5.0

-

6.5

8.0

-

10.3

5.6

9.2

0.7

1.0

5.8

8.9

Internal primary branch

6

16.4

-

25.4

31.2

-

39.8

22.0

34.9

3.2

3.0

23.6

36.0

Internal base + secondary branch

6

13.9

-

22.3

26.9

-

33.4

19.1

30.9

3.8

3.0

21.5

32.8

Internal spur

5

4.4

-

7.4

8.5

-

10.5

5.8

9.5

1.2

0.8

?

?

Claw 2 lengths

             

External primary branch

7

19.1

-

27.3

36.9

-

42.4

24.5

39.8

3.6

2.3

27.3

41.7

External base + secondary branch

6

14.8

-

22.9

28.7

-

34.1

19.4

31.6

3.4

2.1

21.1

32.2

External spur

5

5.5

-

7.9

8.0

-

12.1

6.3

10.5

1.1

1.5

7.9

12.1

Internal primary branch

6

18.6

-

25.4

35.4

-

37.4

22.2

36.3

2.9

0.7

24.5

37.4

Internal base + secondary branch

7

14.4

-

21.8

27.9

-

33.3

19.1

31.0

3.1

2.2

21.8

33.3

Internal spur

6

5.2

-

7.7

10.1

-

12.3

6.5

10.6

1.1

0.9

6.8

10.4

Claw 3 lengths

             

External primary branch

7

18.4

-

26.7

35.7

-

41.4

23.8

38.7

3.5

2.6

26.7

40.8

External base + secondary branch

6

14.8

-

22.9

28.7

-

36.5

19.8

32.5

3.6

3.0

?

?

External spur

5

4.7

-

6.9

8.9

-

10.5

5.9

9.7

1.1

0.7

?

?

Internal primary branch

5

17.6

-

26.4

34.1

-

41.2

22.9

37.8

4.4

3.2

?

?

Internal base + secondary branch

6

15.5

-

23.1

29.8

-

36.8

20.0

32.6

3.4

2.7

21.7

33.1

Internal spur

5

5.8

-

8.9

10.5

-

14.2

7.3

11.9

1.1

1.4

6.9

10.5

Claw 4 lengths

             

Anterior primary branch

6

23.5

-

31.5

43.1

-

49.4

28.7

45.6

2.9

2.5

28.2

43.1

Anterior base + secondary branch

6

17.7

-

25.5

33.4

-

40.0

22.9

36.4

2.8

3.2

21.9

33.4

Anterior spur

5

6.4

-

10.0

12.2

-

14.2

8.2

13.0

1.3

0.8

?

?

Posterior primary branch

6

24.0

-

32.6

45.3

-

51.5

30.0

47.5

3.4

2.5

32.6

49.8

Posterior base + secondary branch

6

18.2

-

26.1

34.6

-

40.8

24.0

37.9

2.9

2.2

24.1

36..8

Posterior spur

5

6.2

-

8.3

11.2

-

11.8

7.2

11.5

0.8

0.3

?

?

  1. Range refers to the smallest and the largest structure among all measured specimens.
  2. The pt values are provided in italics.
  3. N, number of specimens/structures measured; SD, standard deviation; ?, no data.